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OpenStudy (anonymous):
What is the solution to 15=8x2-14x
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OpenStudy (anonymous):
Set it to 0 and factor
OpenStudy (anonymous):
8x^2-14x=15 8x^2-14x-15=0
OpenStudy (a1234):
Subtract fifteen from each side: 8x^2 - 14x - 15 = 0 Find two numbers that are a product of -120 (8*-15) and have a sum of -14. 8x^2 - 20x + 6x - 15 = 0 4x(2x - 5) + 3(x - 5) = 0 (4x + 3)(x - 5) = 0 4x = -3 x = -3/4 x = 5 Solutions: -3/4 and 5.
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